Check-in was not clear. Check-in instructions were emailed and they included two video files--one video was showing how to open the lock box containing the key (I would assume most people would know how to do this), the second video was simply 30 seconds of someone walking down the sidewalk speaking in Thai (turns out this video attempts to show you where the lockbox is, but is poorly done and without the context of what the video is showing you, was ultimately NOT helpful). When I arrived at the building, I had to message the host to ask how to check-in. The host at first forgot that they told me just a few minutes ago that I could check in early (once I reminded the host of our just-prior conversation they helped with locating the lock box). Luckily, they were responsive to my messages so I didn't have to stand outside the building like an idiot for too long.
A couple other things I didn't like about this stay: 1) You're asked not to reveal to the building management your reservation. Instead, if asked about your stay, you're instructed to tell them you're "staying with a friend". 2) Upon check-out the host asked that if I can't leave a 5-star review, that I not leave a review at all. Both of these are practices of deception that I didn't find very reassuring from a host. But more to the point, it's important to me to be a thoughtful traveler/visitor. When my stay is clearly against the rules of the building/community (such as short term rentals often are), it means I'm part of the problem affecting local residents facing challenges in affordable housing. It is stays like this that represent the worst of Airbnb and ultimately why I'll stop using it.
If you don't care about any of that ethical/moral stuff and just want a clean convenient place to stay, this is great!